title: Challenges in ecotoxicology.
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D004463:Ecology / Q000639:trends*; D017753:Ecosystem; D004785:Environmental Pollutants / Q000633:toxicity*; D006801:Humans; D018570:Risk Assessment; D014116:Toxicology / Q000639:trends*
chemical_list: D004785:Environmental Pollutants